tee¶

Copy standard input to files and stdout.

Synopsis¶

tofu tee [files...] [flags]

Read from standard input and write to standard output and files simultaneously. Useful for capturing output while still displaying it.

Flag	Short	Description	Default
`--append`	`-a`	Append to files instead of overwriting	`false`
`--ignore-interrupts`	`-i`	Ignore SIGINT signals	`false`
`--silent`	`-s`	Silent mode: only write to files	`false`

Write to file and stdout:

echo "hello" | tofu tee output.txt

Append to file:

echo "more data" | tofu tee -a output.txt

Write to multiple files:

echo "data" | tofu tee file1.txt file2.txt

Silent mode (no stdout):

echo "data" | tofu tee -s output.txt

In a pipeline:

./build.sh | tofu tee build.log

Ignore interrupts:

./long-running.sh | tofu tee -i output.log